To add a new page to Wiki, all you have to do is come up with a meaningful title, capitalize it if it is English, and then wrap it in double square brackets [[This is a link]] or [[latlh Dochmey]]. Remember that this wiki is case sensitive so the pages QoQ and qoq are different. This can cause minor issues when linking to some English articles. If the first word in the link is not capitalized in normal writing, use this link format [[Page name|page name]] to get a link that looks like page name.
Then you can go ahead and click on it, and the Wiki will give you a window for making the new page. There's also a bunch of TextFormattingRules.